dexter



N. PETERS, PKOWLITMOGRAFMER. WASHINGTON. D C. l

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L. R. DEXTER, 0F WHITEFIEL`D,`NEW HAMPSHIRE.

I Lmm Paten: No. 88,017, dazed Ma/rch 23, 1869i IMPROVEMENT IN WRENC'JHES.

^ The Schedule referred to :ln these Letters Patent and making part ofthe lame.

O'hfO-n- 1 To all whom it ma/y concern:

Be it known that I, L. R. DEXTER, of Whitefield, in the county of Coos, and State of New Hampshire, have invented a new and improved Wrench; and that the following description, taken in connection with the accompanying drawings, hereinafter referred to, forms a full and exact specification of the same, wherein I have set forth the nature and-principles of my said improvement, by which my invention may be distinguished from all others of a similar class, togetherwitli such parts as I claim, and desire to have secured to me by Letters Patent.

A This invention relates to a new and improved wrench, and is more especially designed to be used in connection with wagons or carriages, although it is applicable to other purposes.

The object of the inventionv is to obtain a wrench which may, with the greatest facility, be'adapted to screwing up, or unscrewing nuts which vary in size, or screwing up, or unscrewing screws, the heads of which vary 1n size.

The invention consists in the employment, or use of a taper-socket, having a handleiitted in it, and the socket provided with a `springclamp,toA grasp the nut, or screw-head, all being constructed and ,arran' ged substantially as hereinafter fully shown and described.

In the accompanying sheet of drawings- Figure l is a side view of my invention. I

Figure 2, a side sectional view of the same, the plane of section passing through thecentre.

Figure 3, a plan or top view of' the same.

Figure (1, a detached view of the spring-clamp.

Similar letters of reference indicate corresponding parts in the several drawings.

A represents a socket, which is of taper quadrilateral form, and may be constructed of malleable cast-iron, or any other suitable material.

Through the upper part of this socket, a handle, B,

pas'ses, and'is secured in position by a pin, O, which extends through the handle, the pin, in connection with a crook, or bend, ax, in the handle, securing the latter in position, as will be fully understood by referring to 3.

gD represents a spring-clamp, which is of curved lform, as shown clearly in iig. 4, and is secured, by a pin, a,

to the exterior of the socket A, near its lower end, asl

shown in fig. 1.

The upper bent, or curved part of this spring-clamp bears against the handle B, while its lower end bears against the nut, or head of the screw to be operated uppn, and clamps the latter in position.

The lower end of the spring passes through a notch,l

b, inthe lower part of the socket.

This spring-clamp, in connection with the taper-form of the socket, renders the device capable of being adjustedto dierentsized uuts,or screw-heads, the spring,

.in case of a nut, or screw-head being too small, press- Aand the spring-clamp D, all constructed and arranged substantially in 'the manner as and for the purpose set forth.

L. It. DEXTER. Witnesses:

HENRY O. KENT, RICHARD P. KENT. 

